Geometric triangles seem to be quite hot these days.
Source Pixeden
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
Green Web Background, Seamless tile.
Source V. Hartikainen
A heavy hitter at 400x400px, but lovely still.
Source Breezi
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Almost like little fish shells, or dragon skin.
Source Graphiste
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
The name Paisley reminds me of an old British servant. That’s just me.
Source Swetha
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Neat little photography icon pattern.
Source Hossam Elbialy
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous